The main Five Nights at Freddy's series consists of horror-themed video games, in which the player usually takes on the role of a night-time employee at a location canonically connected to Freddy Fazbear's Pizza, a fictional children's-oriented restaurant similar to Chuck E. Cheese's and ShowBiz Pizza. The restaurant uses life-size animatronic characters that sing and dance for children's parties. These animatronics wander in the restaurant at night, and the guard is instructed to keep watch on these, as the restaurants have had "incidents" of previous guards being attacked and killed by the characters. To progress through the games, the player must guard themself from the animatronics by using various tools to their advantage. For the most part, however, the player must remain stationary in their defence. In the first game, the player can control the two security doors that connect the office to the adjacent hallways, and may close them to provide a barricade against any animatronics in the vicinity. Each night, the player has a limited power supply that depletes quicker when a tool is used; if the player exhausts the power supply, the doors permanently open, allowing any animatronic to breach the office.